1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
77julia77 [94]
3 years ago
13

Kong took 15\%, percent fewer seconds than Nolan took to complete his multiplication timed test. Kong took 85 seconds. How many

seconds did Nolan take?
Mathematics
1 answer:
andreev551 [17]3 years ago
6 0

Answer:

Nolan took 97.75 seconds. you may need to round it to 98.

Step-by-step explanation:

multiply 15% by 85 which equals 12.75 then add to 85

You might be interested in
A number increased by 4 is the same as 19 minus 2 times the number
ElenaW [278]

Hello from MrBillDoesMath!

Answer:

n = 5


Discussion:

Let the original number be "n"  Translating the problem  statement to mathematical symbolism:

n + 4 = 19 - 2n                   =>  add 2n to both sides

n + 2n + 4 = 19 - 2n + 2n  =>  combine like terms

3n + 4 = 19                        => subtract 4 from both sides

3n = 19 -4  = 15                 => divide both sides by 3

n = 15/3 =5


Check: Does 5 +4 = 19 - 2(5)? Does 9 = 9? Yes. so the value for n is confirmed correct.


Thank you,

MrB

6 0
3 years ago
Please solve this question thank you
SVETLANKA909090 [29]

Answer:

angle ABC = 30°

Step-by-step explanation:

I attached a picture. if any part is not understandable leave a comment.

6 0
2 years ago
Write down the equation that could be a correct equation for linear regression prediction function?
user100 [1]

If the question meant that we should write a linear prediction function ;

Answer:

y = bx + c

Step-by-step explanation:

The equation for a linear regression prediction function is stated in the form :

y = bx + c

Where ;

y = Predicted or dependent variable

b = slope Coefficient

c = The intercept value

x = predictor or independent variable

Therefore, the Linear function Given represents a simple linear model for one dependent variable, x

b : is the slope value of the equation, whuch represents a change in y per unit change in x

6 0
3 years ago
To compare two products such as colas, a random sample is selected to taste two types of colas (A and B). Each selected subject
Nadya [2.5K]

Answer: The sample size would be needed = 385

Step-by-step explanation:

Let p be the prior population proportion.

Margin of error = E

When not estimate of p is given , the formula to calculate the minimum sample size <em>n</em> = 0.25(\dfrac{z^*}{E})^2 , where z* = critical value for given confidence interval.

Here z* for 95% confidence level is 1.96.

E=5%=0.05

Then n=0.25(\dfrac{1.96}{0.05})^2\approx385

Hence, the sample size would be needed = 385

8 0
2 years ago
Find the length of segment ST <br> A) 74 units <br> B) 12 units <br> C) 10 units <br> D) 74 units
vodomira [7]
74 units would be your answer for the length segment
4 0
3 years ago
Other questions:
  • A hurricane traveled 180 miles in 4 hours. If the average rate at which the hurricane is moving slows by 10%, what is the distan
    14·2 answers
  • Sam and Jon are attending the same summer camp. The camp is 293 miles away from each of their homes. The graph shows Jon's const
    13·1 answer
  • Simplify 4 times square root 24 minus 4 square root 8 plus square root of 98.
    10·1 answer
  • Maria can bake 28 cupcakes with 3 scoops of flour. How many cupcakes can she bake with 27 scoops of flour?
    10·1 answer
  • fractions whose numerators are 1 such as 1/2 or 1/3 are called unit fractions describe a method you can use to add two unit frac
    7·1 answer
  • The walzer's average phone bill increased from $13.30 to $15.96 what is the percentage of increase
    9·1 answer
  • Plsss I need help ASAP
    14·2 answers
  • A team of researchers is testing the effectiveness of a new HPV vaccine. They randomly divide the subjects into two groups.
    10·1 answer
  • Who Bigger 4 kilograms or 4,000 grams
    5·2 answers
  • A Ferris wheel at an amusement park is modeled by (x – 100)2 + (y – 75)2 = 4,900, where the measurements are in feet. A slingsho
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!